cislunar
adjective
cis·lu·nar
(ˌ)sis-ˈlü-nər 
: lying between the earth and the moon or the moon's orbit
cislunar space
Examples of cislunar in a Sentence
Recent Examples on the Web
And, given actions of late here on Earth, are we headed for a tariff-free cislunar zone?
—
Leonard David, Space.com, 17 May 2025
True Anomaly launched three demo satellites into low Earth orbit last year and announced plans to deploy its first experimental space defenders into geostationary and cislunar orbits (an orbit between Earth in the moon affected by the gravity of both) in 2026.
—IEEE Spectrum, 11 May 2025
But what needs to happen to help spark a true cislunar economy?
—Leonard David, Space.com, 17 May 2025
As a reusable cislunar transport system, Sunbird can deliver up to 3,300 pounds of supplies to lunar orbit, which would support operations like fuel processing and spacecraft navigation.
—Kurt Knutsson, Cyberguy Report, FOXNews.com, 24 Apr. 2025
Cruz wanted Isaacman to commit to not just flying human missions to the Moon, but also to a sustained presence on the surface or in cislunar space.
—Eric Berger, ArsTechnica, 9 Apr. 2025
Lunar ice deposits are critical for making rocket fuel and breathable oxygen to jumpstart the cislunar economy and forge a path to Mars.
—John Kross, Space.com, 3 Feb. 2025
The agency had long maintained that the space program would benefit from having a presence in cislunar space—the area between the Earth and the moon—to test technologies for future missions to Mars and beyond.
—IEEE Spectrum, 8 July 2019
These programs could spur commercial space players to redouble their efforts to develop and monetize cislunar space and the lunar surface.
—John Kross, Space.com, 3 Feb. 2025
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Leonard David, Space.com, 17 May 2025
True Anomaly launched three demo satellites into low Earth orbit last year and announced plans to deploy its first experimental space defenders into geostationary and cislunar orbits (an orbit between Earth in the moon affected by the gravity of both) in 2026.
—IEEE Spectrum, 11 May 2025
But what needs to happen to help spark a true cislunar economy?
—Leonard David, Space.com, 17 May 2025
As a reusable cislunar transport system, Sunbird can deliver up to 3,300 pounds of supplies to lunar orbit, which would support operations like fuel processing and spacecraft navigation.
—Kurt Knutsson, Cyberguy Report, FOXNews.com, 24 Apr. 2025
Cruz wanted Isaacman to commit to not just flying human missions to the Moon, but also to a sustained presence on the surface or in cislunar space.
—Eric Berger, ArsTechnica, 9 Apr. 2025
Lunar ice deposits are critical for making rocket fuel and breathable oxygen to jumpstart the cislunar economy and forge a path to Mars.
—John Kross, Space.com, 3 Feb. 2025
The agency had long maintained that the space program would benefit from having a presence in cislunar space—the area between the Earth and the moon—to test technologies for future missions to Mars and beyond.
—IEEE Spectrum, 8 July 2019
These programs could spur commercial space players to redouble their efforts to develop and monetize cislunar space and the lunar surface.
—John Kross, Space.com, 3 Feb. 2025
Cite this Entry
“Cislunar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cislunar. Accessed 4 Jul. 2025.
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cislunar
adjective
cis·lu·nar
(ˈ)sis-ˈlü-nər
: lying between the earth and the moon or the moon's orbit
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